Answer:
51/9 or 5 2/3
Explanation:
First, multiply both sides by b-1 using the distributive property.
6/(b-1)=9/7
6=9(b-1)/7
6=(9b-9)/7 Multiply both sides by 7.
42 = 9b-9 Add 9 to both sides.
51 = 9b Divide both sides by 9.
b = 51/9 or 5 2/3
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